Aniline is also known as anilin, anilin oil and aminobenzene, with molecular formula of C6H7N. Colorless oily liquid. Melting point - 6.3 ºC, boiling point 184 ºC, relative density 1.02 (20/4 ºC), relative molecular weight 93.128, heat to 370 ºC for decomposition. Slightly soluble in water, easily soluble in ethanol, ether and other organic solvents.
Aniline is one of the most important amines. It is mainly used in the manufacture of dyes, drugs, resins, and can also be used as rubber vulcanization accelerator. It can also be used as a black dye. Its derivative methyl orange can be used as an indicator for acid-base titration.